Koninklijke Philips Corporation N.V.

Fubiao Xia

Jin Qu

Xin Ge

Raymond J Krasinski

Alexander Ryan Mankovich

Yong Mao

Various embodiments relate to a method and apparatus for policy-hiding on ciphertext-policy attribute based encryption, the method including the steps of categorizing each of a plurality of attributes into a plurality of groups where each of the plurality of groups has a group attribute, inputting a policy and a message into an encryption algorithm and outputting a ciphertext; and encrypting an AND subtree in the policy and outputting a sub-cipher.

Method and apparatus for policy hiding on ciphertext-policy attribute-based encryption

A method for assessing risk associated with a request from an inquirer for allele frequency from a database of genetic data, comprising: (i) generating an allele database comprising allele frequency information and request frequency information for each of a plurality of alleles; (ii) generating an inquirer database comprising allele request information about a plurality of inquirers; (iii) receiving a request for genetic data from an inquirer, comprising a request for allele frequency for one or more alleles and an identifier of the inquirer; (iv) updating the request frequency information based on the received request; (v) updating the allele request information for the requesting inquirer; (vi) calculating an allele risk score; (vii) calculating an inquirer risk score; and (viii) assessing, based on the allele risk score and the inquirer risk score, a risk associated with the received request.

Proactive resistance to re-identification of genomic data

Embodiments of the present disclosure relate to digital rights management. A method for managing rights transfer of using digital content from a first device () to a second device () is proposed, comprising generating at an authentication device () a first authentication dataset C by encrypting a first verification code Rusing at least one public key for at least one device blacklisted by the authentication device (). The first authentication dataset C and a second verification code Rare provided from the authentication deviceto the first device () and a response message M is returned from the second device () to the authentication device (). The method also comprises verifying validity of the second device () at the authentication device () based on the received response message M. In accordance with embodiments of the present disclosure, the DRM protected digital content can be shared with high security, while the recipient is kept anonymous to the DRM server.

Growing community of inventors

Shanghai, China

Fubiao Xia